FPF1107 Equivalent & Substitute Parts Reference

Part Overview

The FPF1107 is an obsolete power switch/driver IC manufactured by onsemi, featuring a 1:1 P-Channel high-side configuration with 1.2A output capability in a 4-WLCSP (0.96x0.96) package. As an obsolete product, component sourcing requires identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility within the specified parameter ranges. Substitute parts must satisfy the load voltage range (1.2V ~ 4V), output current requirements, and surface mount packaging constraints of the original design.

Key Parameters

Parameter	FPF1107 Specification
Manufacturer	onsemi
Product Status	Obsolete
Switch Type	General Purpose P-Channel High Side
Output Configuration	High Side, 1:1 Ratio
Current - Output (Max)	1.2A
Voltage - Load	1.2V ~ 4V
Rds On (Typ)	35mOhm
Package / Case	4-UFBGA, WLCSP (0.96x0.96)
Operating Temperature	-40°C ~ 85°C (TA)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the FPF1107 is determined by the following critical parameters:

Electrical Compatibility Requirements:

Output Type: P-Channel high-side switch configuration
Ratio: 1:1 input-to-output
Interface: On/Off control, non-inverting input
Output Current: Must support minimum 1.2A
Load Voltage Range: Must encompass or exceed 1.2V ~ 4V specification
Operating Temperature: -40°C ~ 85°C minimum

Mechanical Compatibility Requirements:

Mounting Type: Surface mount only
Package Family: WLCSP, DSBGA, or UFBGA ball grid array packages
Pin Count: 4-pin configuration

Compliance Requirements:

RoHS3 compliance mandatory
MSL rating of 1 (Unlimited) preferred

Substitute parts are grouped by electrical performance tier and package form factor. Parts with higher current ratings (2A, 3A) and lower Rds On values provide enhanced performance margins. Parts with reduced current ratings (500mA, 1A) represent functional alternatives only where load current does not exceed their specifications.

Parameter Comparison

Part Number	Manufacturer	Output Type	Current (Max)	Voltage - Load	Rds On (Typ)	Package	Product Status
FPF1107	onsemi	P-Channel	1.2A	1.2V ~ 4V	35mOhm	4-WLCSP (0.96x0.96)	Obsolete
TPS22910AYZVR	Texas Instruments	P-Channel	2A	1.4V ~ 5.5V	60mOhm	4-DSBGA (0.88x0.88)	Active
TPS22910AYZVT	Texas Instruments	P-Channel	2A	1.4V ~ 5.5V	60mOhm	4-DSBGA (0.88x0.88)	Active
TPS22913BYZVT	Texas Instruments	P-Channel	2A	1.4V ~ 5.5V	60mOhm	4-DSBGA (0.88x0.88)	Active
TPS22913CYZVT	Texas Instruments	P-Channel	2A	1.4V ~ 5.5V	60mOhm	4-DSBGA (0.88x0.88)	Active
TPS22930AYZVR	Texas Instruments	P-Channel	2A	1.4V ~ 5.5V	35mOhm	4-DSBGA (0.88x0.88)	Active
TPS22930AYZVT	Texas Instruments	P-Channel	2A	1.4V ~ 5.5V	35mOhm	4-DSBGA (0.88x0.88)	Active
TPS22906YZVR	Texas Instruments	P-Channel	500mA	1V ~ 3.6V	90mOhm	4-DSBGA (0.88x0.88)	Not For New Designs
TPS22907YZTR	Texas Instruments	P-Channel	1A	1.1V ~ 3.6V	44mOhm	4-DSBGA (0.9x0.9)	Not For New Designs
TPS22907YZTT	Texas Instruments	P-Channel	1A	1.1V ~ 3.6V	44mOhm	4-DSBGA (0.9x0.9)	Not For New Designs
NCP451AFCT2G	onsemi	N-Channel	3A	0.75V ~ 5.5V	12mOhm	6-WLCSP (1.4x0.9)	Active

Engineering Selection Recommendations

Primary Substitutes (Active Status, Matched Rds On):

TPS22930AYZVR and TPS22930AYZVT represent the closest electrical equivalents to the FPF1107. Both parts maintain the 35mOhm Rds On specification, support 2A output current (exceeding the 1.2A requirement), and operate across the extended load voltage range of 1.4V ~ 5.5V, which encompasses the original 1.2V ~ 4V specification. Both are Active products with ROHS3 compliance and MSL 1 rating. Package dimensions (4-DSBGA 0.88x0.88) are compatible with 4-pin BGA footprints, though PCB layout verification is required due to minor dimensional differences from the original 4-WLCSP (0.96x0.96).

Secondary Substitutes (Active Status, Higher Current):

TPS22910AYZVR, TPS22910AYZVT, TPS22913BYZVT, and TPS22913CYZVT provide 2A output capability with 60mOhm Rds On. These parts exceed the FPF1107 current specification and support the extended 1.4V ~ 5.5V load voltage range. All are Active products with ROHS3 compliance. TPS22913 variants include load discharge and additional fault protection features (Reverse Current, UVLO) not present in the original part.

Tertiary Substitutes (Not For New Designs Status):

TPS22906YZVR (500mA) and TPS22907YZTR/YZTT (1A) are classified as "Not For New Designs" and should be used only for legacy system maintenance or where new design qualification is not required. TPS22906YZVR operates at reduced current (500mA) and is unsuitable for applications requiring the full 1.2A specification. TPS22907 variants support 1A output, meeting minimum current requirements but with reduced margin.

Alternative Technology (N-Channel Configuration):

NCP451AFCT2G is an N-Channel high-side switch with 3A capability and superior 12mOhm Rds On. This part requires circuit topology modification from P-Channel to N-Channel operation and uses a 6-pin WLCSP package. Selection of this part is appropriate only where circuit design permits N-Channel substitution and the additional pin count is accommodated in PCB layout.

Frequently Asked Questions (FAQ)

Q: Can TPS22930AYZVR directly replace FPF1107 without PCB modification?

A: Electrical substitution is valid. Both parts are 4-pin high-side P-Channel switches with compatible On/Off control interfaces and overlapping load voltage specifications. However, package dimensions differ: FPF1107 uses 4-WLCSP (0.96x0.96) while TPS22930AYZVR uses 4-DSBGA (0.88x0.88). PCB footprint verification and potential layout adjustment are required. Ball pitch and solder pad geometry must be confirmed against component datasheets before assembly.

Q: Why is NCP451AFCT2G listed as a substitute if it uses N-Channel instead of P-Channel?

A: NCP451AFCT2G is included as a functional alternative for applications where circuit topology permits N-Channel high-side switching. N-Channel devices require gate drive voltage above the load voltage (bootstrap or charge pump circuit), whereas P-Channel devices require only ground-referenced control signals. Selection of NCP451AFCT2G requires circuit redesign and is not a pin-compatible replacement.

Q: What is the significance of "Not For New Designs" status for TPS22906 and TPS22907 parts?

A: "Not For New Designs" indicates that Texas Instruments no longer recommends these parts for new product development. While functionally operational, these parts may have limited long-term availability and reduced manufacturer support. For new designs, Active-status alternatives (TPS22930, TPS22910, TPS22913 series) are preferred. Legacy system maintenance may continue using these parts where existing inventory is available.

Q: Does the higher current rating of TPS22910 (2A vs. 1.2A) affect circuit compatibility?

A: Higher current rating indicates increased device capability but does not negatively affect compatibility. The FPF1107 application circuit will operate within the TPS22910 specification envelope. The 60mOhm Rds On of TPS22910 versus 35mOhm of FPF1107 results in slightly higher power dissipation at maximum current; thermal analysis should confirm that PCB thermal design accommodates this difference.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant certification. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all parts, matching the original FPF1107 specification and eliminating bake-out requirements for standard storage and handling.

Q: What is the load voltage compatibility window for substitution?

A: The FPF1107 specifies 1.2V ~ 4V load voltage. TPS22930, TPS22910, and TPS22913 parts support 1.4V ~ 5.5V, which encompasses the original range with extended upper margin. TPS22906 and TPS22907 support narrower ranges (1V ~ 3.6V and 1.1V ~ 3.6V respectively) and are suitable only where application load voltage does not exceed 3.6V.

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